Queensland Brain Institute

Mrs Shanley Longfield

PhD Student & Senior Research Assistant/Technician/Coordinator (Supervisor)
Queensland Brain Institute

I am a PhD student investigating the molecular determinants of synaptic vesicle (SV) pool organisation. While SV clustering in the presynaptic bouton has been repeatedly observed, it is still unclear as to what regulates the association or dissociation of a vesicle from the cluster. SV fusion with the plasma membrane upon stimulation, and their subsequent recycling and return to the vesicle cluster is an integral part of neurotransmission (the release of neurotransmitters from the bouton into the synaptic cleft). My investigation of SVs and the pools that they organise themselves into (Readily releasable pool, Recycling pool and the Reserve pool) is facilitated by techniques such as sdTIM (Subdiffractional tracking of internalized molecules) and sptPALM (single-particle tracking photoactivated localization microscopy).

Supervisor: Professor Frederic Meunier
 

Publications

Journal Articles (3)
Data Collections (2)

Journal Articles

Longfield, Shanley F., Gormal, Rachel S., Feller, Matis, Parutto, Pierre, Reingruber, Jürgen, Wallis, Tristan P., Joensuu, Merja, Augustine, George J., Martínez-Mármol, Ramón, Holcman, David and Meunier, Frédéric A. (2024). Synapsin 2a tetramerisation selectively controls the presynaptic nanoscale organisation of reserve synaptic vesicles. Nature Communications, 15 (1) 2217, 1-18. doi: 10.1038/s41467-024-46256-1
Longfield, Shanley F., Mollazade, Mahdie, Wallis, Tristan P., Gormal, Rachel S., Joensuu, Merja, Wark, Jesse R., van Waardenberg, Ashley J., Small, Christopher, Graham, Mark E., Meunier, Frédéric A. and Martínez-Mármol, Ramón (2023). Tau forms synaptic nano-biomolecular condensates controlling the dynamic clustering of recycling synaptic vesicles. Nature Communications, 14 (1) 7277, 1-20. doi: 10.1038/s41467-023-43130-4
Joensuu, Merja, Syed, Parnayan, Saber, Saber H., Lanoue, Vanessa, Wallis, Tristan P., Rae, James, Blum, Ailisa, Gormal, Rachel S., Small, Christopher, Sanders, Shanley, Jiang, Anmin, Mahrhold, Stefan, Krez, Nadja, Cousin, Michael A., Cooper‐White, Ruby, Cooper‐White, Justin J., Collins, Brett M., Parton, Robert G., Balistreri, Giuseppe, Rummel, Andreas and Meunier, Frédéric A. (2023). Presynaptic targeting of botulinum neurotoxin type A requires a tripartite PSG‐Syt1 ‐ SV2 plasma membrane nanocluster for synaptic vesicle entry. The EMBO Journal, 42 (13) e112095, e112095. doi: 10.15252/embj.2022112095

Data Collections

Meunier, Frederic, Bouquet, Mahe and Longfield, Shanley (2024). Longfield et al_2024_Synapsin. The University of Queensland. (Dataset) doi: 10.48610/be3832e
Gormal, Rachel, Meunier, Frederic, Martinez-Marmol, Ramon, Mollazade, Mahdie, Wallis, Tristan, Joensuu, Merja, Sanders, Shanley and Small, Christopher (2023). Longield et al_2023_NatComm_Raw. The University of Queensland. (Dataset) doi: 10.48610/a9c9def